Home / 25,716.80-38,404.32-25,438.47

Finding the Fourth Proportional to 25,716.80, 38,404.32 and 25,438.47

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Solution

The fourth proportional to 25,716.80, 38,404.32 and 25,438.47 is: 37,988.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,716.80 : 38,404.32 = 25,438.47 : x
  2. Step 2: Convert to fraction form
    25,716.80/38,404.32 = 25,438.47/x
  3. Step 3: Cross multiply
    25,716.80x = 38,404.32 × 25,438.47
  4. Step 4: Simplify right side
    25,716.80x = 976,947,349.80
  5. Step 5: Solve for x
    x = 976,947,349.80/25,716.80
  6. Step 6: Final answer
    x = 37,988.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.